Brandon Havel of The Koalition writes: This is the first Serious Sam game that Ive played. My original thoughts on the series were that it looked too similar to other titles which I was already a fan of. How wrong I was. Serious Sam 4 is very happy doing its own thing, and its gotten pretty good at it.
Source: N4G PC Serious Sam 4 Review – One Badass FPS Experience – The Koalition